mirror of
https://github.com/rubyjs/therubyracer
synced 2023-03-27 23:21:42 -04:00
205c52c5bf
move v8 src to google dir moving v8 source into main extension move google upstream source dir into v8 ext dir include v8 library in generated bundle prep for 0.4.7 roll the upstream build into the main extension build Documentation was confusing the gem packager. simplify build instructions with bundled v8. Only install scons and build v8 if it has not been built already. Missing CVS.py from the scons library due to ignore patterns. Don't need libv8 anymore, only python 2.5 which is required to build it.
120 lines
4.1 KiB
Python
Executable file
120 lines
4.1 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Copyright 2009 the V8 project authors. All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# This is an utility for converting V8 heap logs into .hp files that can
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# be further processed using 'hp2ps' tool (bundled with GHC and Valgrind)
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# to produce heap usage histograms.
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# Sample usage:
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# $ ./shell --log-gc script.js
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# $ tools/process-heap-prof.py v8.log | hp2ps -c > script-heap-graph.ps
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# ('-c' enables color, see hp2ps manual page for more options)
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# or
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# $ tools/process-heap-prof.py --js-cons-profile v8.log | hp2ps -c > script-heap-graph.ps
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# to get JS constructor profile
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import csv, sys, time, optparse
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def ProcessLogFile(filename, options):
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if options.js_cons_profile:
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itemname = 'heap-js-cons-item'
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else:
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itemname = 'heap-sample-item'
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first_call_time = None
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sample_time = 0.0
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sampling = False
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try:
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logfile = open(filename, 'rb')
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try:
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logreader = csv.reader(logfile)
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print('JOB "v8"')
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print('DATE "%s"' % time.asctime(time.localtime()))
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print('SAMPLE_UNIT "seconds"')
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print('VALUE_UNIT "bytes"')
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for row in logreader:
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if row[0] == 'heap-sample-begin' and row[1] == 'Heap':
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sample_time = float(row[3])/1000.0
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if first_call_time == None:
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first_call_time = sample_time
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sample_time -= first_call_time
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print('BEGIN_SAMPLE %.2f' % sample_time)
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sampling = True
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elif row[0] == 'heap-sample-end' and row[1] == 'Heap':
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print('END_SAMPLE %.2f' % sample_time)
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sampling = False
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elif row[0] == itemname and sampling:
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print(row[1]),
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if options.count:
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print('%d' % (int(row[2]))),
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if options.size:
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print('%d' % (int(row[3]))),
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print
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finally:
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logfile.close()
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except:
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sys.exit('can\'t open %s' % filename)
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def BuildOptions():
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result = optparse.OptionParser()
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result.add_option("--js_cons_profile", help="Constructor profile",
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default=False, action="store_true")
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result.add_option("--size", help="Report object size",
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default=False, action="store_true")
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result.add_option("--count", help="Report object count",
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default=False, action="store_true")
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return result
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def ProcessOptions(options):
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if not options.size and not options.count:
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options.size = True
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return True
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def Main():
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parser = BuildOptions()
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(options, args) = parser.parse_args()
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if not ProcessOptions(options):
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parser.print_help()
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sys.exit();
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if not args:
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print "Missing logfile"
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sys.exit();
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ProcessLogFile(args[0], options)
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if __name__ == '__main__':
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sys.exit(Main())
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